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  "identifier" : "/documentation/AppKit/NSCandidateListTouchBarItemDelegate",
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  "title" : "NSCandidateListTouchBarItemDelegate"
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# NSCandidateListTouchBarItemDelegate

A set of methods that a candidate list item delegate uses to enable selection state and list visibility.

```
protocol NSCandidateListTouchBarItemDelegate : NSObjectProtocol
```

## Topics

### Handling selection changes

[`candidateListTouchBarItem(_:beginSelectingCandidateAt:)`](/documentation/AppKit/NSCandidateListTouchBarItemDelegate/candidateListTouchBarItem(_:beginSelectingCandidateAt:))

Tells the delegate that the user has started touching one of the candidates in the candidate list item.

[`candidateListTouchBarItem(_:changeSelectionFromCandidateAt:to:)`](/documentation/AppKit/NSCandidateListTouchBarItemDelegate/candidateListTouchBarItem(_:changeSelectionFromCandidateAt:to:))

Tells the delegate that user has moved from touching one candidate in the candidate list item to another.

[`candidateListTouchBarItem(_:endSelectingCandidateAt:)`](/documentation/AppKit/NSCandidateListTouchBarItemDelegate/candidateListTouchBarItem(_:endSelectingCandidateAt:))

Tells the delegate that a user has stopped touching candidates in the candidate list item.

### Handling visibility changes

[`candidateListTouchBarItem(_:changedCandidateListVisibility:)`](/documentation/AppKit/NSCandidateListTouchBarItemDelegate/candidateListTouchBarItem(_:changedCandidateListVisibility:))

Tells the delegate that the visibility of the candidate list has changed.


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